Interface Level

ARGUMENTS

Description

The tran_dmafree() vector in the scsi_hba_tran structure must be initialized during the
HBA driver's attach() to point to an HBA entry point to be called when a
target driver calls scsi_dmafree(9F). See attach(9E) and scsi_hba_tran(9S).

tran_dmafree() must deallocate any DMA resources previously allocated to this pkt in
a call to tran_init_pkt(9E). tran_dmafree() should not free the structure pointed to
by pkt itself. Since tran_destroy_pkt(9E) must also free DMA resources, it is important
that the HBA driver keeps accurate note of whether scsi_pkt(9S) structures have DMA resources
allocated.